/*
 * Copyright (c) 2025 Huawei Device Co., Ltd.
 * Licensed under the Apache License, Version 2.0 (the "License"); * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *     http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */

import { BaseEdge } from "../core/graph/BaseExplicitGraph";

export enum VFGEdgeKind { DirectIntra, CallDirect, RetDirect, CallIndirect, RetIndirect }

export class DVFGEdge extends BaseEdge {
    public getDotAttr(): string {
        switch (this.getKind()) {
            case VFGEdgeKind.CallDirect:
            case VFGEdgeKind.RetDirect:
                return 'color=purple';
            case VFGEdgeKind.RetIndirect:
            case VFGEdgeKind.CallIndirect:
                return 'color=purple,style=dotted';
            default:
                return 'color=black';
        }
    }
}